After 54 years of closure, the U.S. embassy in Havana and the Cuban embassy in Washington, D.C. each began flying their flags once more this week, a symbol of the restored diplomatic ties between the two nations. Here is what we can expect from the relationship going forward:College students now able to travel to country without pretense of learning single thing about people or customsForeign telecommunications companies to provide Cuban people with greater access to overcharges and hidden...